Respuesta :
Well, if a minute is 60 seconds, and she typed 10 words in 15 seconds, we can easily calculate the words per minute. Since 15 * 4 = 60, we need to do the same with 10. Ten * 4 = 40, so she cannot enter the typing contest. I hope this helps you.
There are 60 seconds in a minute. So first we take 60 and divide it by 15. That gives us 4. So there are 4 15 second increments where Pat types 10 words. So if she types 10 words in 15 seconds, and there are only 4 15 second increments in a full minute, then she can't enter because she can only type 40 words per minute.